Yukan Fuji is reporting that Sega, Capcom and other major makers are moving towards making more Western-oriented games, and in doing so, are shifting to the Xbox (i.e. "away from Sony" - their words, not mine).
http://www.yukan-fuji.com/archives/2007/03/post_8741.html
For example, in the beginning, Capcom announced they were developing 5 games but this has now been reduced to 1, with 4 projects having stopped, according to industry insiders.
In addition to PS3 development being difficult, the machine has not sold as well as expected so game makers are shifting to Xbox, which has sold very well in the West. How well the game machine can sell will depend on how much effort companies put into making games for it. By this reasoning, PS3 looks to be approaching a serious condition.
http://www.yukan-fuji.com/archives/2007/03/post_8741.html